Removable wedge bolt



April 30, 1929. F. c. MCENERNY REMOVABLE WEDGE BOLT Filed NOV. ll, 1927 S14/vanto@ Mcnemg E 0 1 am l2 f i?. l A rdlwxl. 9 1

Patented Apr. 30, 1929.

UNITED STATES PATENT OFFICE.

FRANK C. MCENERNY, OF COLUMBUS, OHIO, ASSIGNOR F ONE-THIRDTO LOUIS BERN- HARD AND ONE-THIRD TO H. E. RICHTER, BOTH OF COLUMBUS. OHIO.

REMOVABLE WEDGE BOLT.

Application filed November' 11, 1927- This invention relates to improvements in removable Wedge bolts for locomotive frame pedestals, and has t'or its primary object the provision of a Wedge bolt construction which may be removed trom its operative position in connection With the pedestal frame and pedestal brace Without irst requiring the removal of the brace to eltect the operation.

As locomotives are now ordinarily constructed it is a matter of very considerable time and labor to remove defective Wedge bolts for the purpose of adjusting the axle boxes or blocks and therefore the present invention consists in the provision oi' a simple and improved type of wedge block wherein the operating bolts thereot when worn or damaged may in a few minutes operation be removed and replaced without disturbing the general assembly ot' associated parts and in but a small traction of the time are required for ei'lfecting similar replacements.

W'ith these and other objects in view, as will appear as the description proceeds7 the invention consists in the novel features of construction, combinations ot elements and arrangements of parts hereinafter to be more fully described and pointed out in the appended claims.

Tn the accompanying drawing:

Figure 1 is a vertical sectional vienT oi a portion ot a locomotive trame, illustrating the construction and position of the improved Wedge boltcomprising the present invention in association therewith,

Figure 2 is a vertical transverse sectional view talten on the plane indicated by the line .2-2 oi Figure 1,

Figure 3 is a horizontal sectional Vview on the line 3 3 ot' Figure 1,

Figure 1- is a similar vieiv taken on the plane indicated by the line 441 of Figure 2,

Figure 5 is a horizontal sectional view on the line 5 5 ot Figure 2,

Figure 6 is :i detail perspective view of the head end of the removable bolt. y

Referring more particularly to the drawing the numeral 1 designates a portion of the trame ot a locomotive, the frame being formed to include the usual pedestal bars 2, a removable pedestal brace 3, axle blocks 4 and an axle 5. The removable pedestal brace 3 is provided with the usual sockets 6 for the reception of lugs 'i' which depend from the trame 1, and bolts 8 are utilized in the usual Serial N'o. 232,700.

Way for securing the brace 3 to the bars of the pedestal frame.

Interposed bet-Ween the pedestal legs 2 a Wedge 9 oi' substantially standard construction7 which by being adjustable vertically with respect to the frame is adapted to tighten the position of the axle blocks si in the customary manner. In this instance, however, the bottom of the wedge 9 is formed to include a transversely extending substantially T shaped slot 10 having notches 11 provided therein intermediate of its length. The slot 10 extends from one side of the wedge bar to the other, as indicated in Figures 1 and 4t.

`Receivable Within the slot 10 is the head l2 ot' a securing bolt 13. i This head possesses impi'irtant. dimensions in that the length thereof exceeds the 'Width ot the restricted portion 14 ot the slot 10, so that when the bolt 13 is actively positioned the head thereof Will be received Within the notches 11 and will extend transversely of the slot l() as shown in Figure 5. By thus proportioning the head 12 it will be seen that the same may be ro tated Within the slot 10 so as to be aligned with the restricted portion 14 thereof, which will permit the bolt to be Withdrawn from engagement with the Wedge and likewise to be conveniently inserted in connect-ion therewith.

The bolt is provided with an elongated shank which is receivable Within an exteriorly threaded sleeve or bui-:hing 111 the latter, in turn7 being' threaded into an opening' 16 extending vertically through thel removable pedestal brace A lock nut 17 is provided on the exterior ot the bushing or sleeve 151:0 retain the latter against loss ci ad justment. The bottom of the bolt 13 or the loiver end thereof is threaded as at 1S tor the reception of one or more binding nuts 19, which engage with an annular enlargement 20 formed upon the lower end of the bushiu or sleeve 15, so that by tightening the `nut-s 19 the Wedge block 9 may be advanced into firm i'rictional engagement with the axle journals and pedestal frames.

The diameter of the opening 1G is in excess or' the greatest diameter of the head 12, and it Will be seen that when the bushing or sleeve 15 has been removed from ,the pedestal brace 3, it is a simple matter to slightly elevate the head 12 of the bolt 13 so as to remove the same from the notches 11. Then by rotating the bolt 13 to approximately 90 degrees or ing engaged ttter 1n appll rt of the bead the upper end of Suid bushing be ted portion will to hold the l tb smid brace and bolt lowing the Shank thereotE one-quer ed axle block, 6o

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